my sister was killed off duty in michigan in october of 1994. >> i am here because my son was murdered may 10, 2007, in chicago, illinois, on a crowded bus. >> my sister was a freshman at virginia tech. she was only 18 years old. >> my father was a professor and taught civil engineering at virginia tech and he was killed on april 16, 2007. >> my name is john woods. my girlfriend was killed that virginia tech. -- at virginia tech. >> i was shot four times at virginia tech and survived. i'm here for the 32 that did not. >> i'm from chicago and my son was murdered on church grounds while coming outside of the church. i am pleading for our leaders to help us. >> i am here on behalf of my daughter who was murdered on march 30, 2010, on south capitol street. she was 16 years old and my only child, with an ak-47. >> i came here from phoenix, arizona. i lost my son seven years ago. thank you. >> i'm here to give a voice to my baby sister who was killed when she was 15 in salt lake city. >> my daughter was killed in salt lake city. i was also seriously injured in 2007. >> my name is peter reed.